Improvement in coating barrels to render them oil-tight



' UNITED 'STATES' PAlaiLQlrICE- ALBERT HOOK AND: lzHENRY DARLINGTON, OFA NEV YORK, NL Y.

IMPROVEMENT lN COATlNG BARRELSTO H ENDER THEMlL-TIGHT,

Specification forming part of. Letters Patent No. 43,025. dated J une 7, 18611 Be it knownthat we,'ALBER'r H. Hooi; and vJ ,HENRY DARLINGroN,'of the city, county, and State of New York, have invented certain new and useful' improvements for coating barrels on the inside and stopping them, so as to render them proof .agai nst leakage when filled Wit-h oils of various kinds and like substances; and we-do hereby declare and ascertain our said improvements as follo\v5:` f j Heretofore many attempts havev beenl made Vto guard against the lossof oils, Src., by eYapo-f ration' when in barrelsor. like vessels ofv wood, but without success. For this'purpose the inl side of.v barrels have been coated with glue.

This has, however, onlypartially remedied the.,

ditficuly. rlhe glue'cr-acksand leakage ,takes that there is`1nolasses enough to prevent the cracking of the glue,) and it is forced into the pores ofthe Wood by eitherof t/Wo well-known processesfhydraulic pressure or vacuum produced by ordinary apparatus for that purpose, which` is too well known to require any description here.v By this meansthematerial is drawn or forced into the pores of the wood and renders-it oil-proof, producing an elastic yielding' coat offimpenetrable materiall against,

h'i-ghly-rectiliedoils. In cases Where there is- Water mixed with the oils, as in crude petro- :leuin,..we first saturate the barrel with glue,- as above described, and theirfillit' with a so# lution of tannin, vwhich 'so'acts upon the glue' as to enable 'it torepel the attack of the-water lcombined with` the oils We have found by thus treating` Wfooden barrels, &c.,`ithat they are impervious' to oil, vand ,gna'rdfthemjper fectly against leakage or evaporation'intrausporting and handlinggas well vasin `storing,

-which has heretofore been a serious'loss. l -Gum-arabicandlike substances may, in 4sonne instances, be used to saturate the'pores of the wood, butweprefer the use of glue.

.In order to render-tbe barrel perfectly tight, we propose after it is filled to screw a metal bung into the bungfhole, which shouldbe pre! viously tapped forthe purpose` and well saturatedw'ith the cohipoundbefore thelinser tion.; To-insure a perfect sealingoi` the joints around the'head of the barrel on `the inside,

:we: give' those parts a second coating after the.

first isset.

Having thus fully descri `ved our improve-- ment in rendering barrels,"&c., impervious tov oil, 85o., what we claim therein Vas lumwerfend for which We desire Letter'slatent, is-v l. Saturating-Wooden vessels, as and folthe purposes hereinabove set forth. A'

.2. In combination therewith the manner'o'f stopping the lbung-hole.

ALBERT H. HOOK. n l JJH. DARLNGTON. Vitnesses: v I

l-1J J Gannvoorin,v

DANL. RABQWKIER, 

